.form{
    position:absolute;
    top: 50%;
    margin-top: -50%;
    margin-left: 8%;
    margin-right: 8%;
    border-style: solid;
    border-width: 16px;
    border-color: #86c4cd;
    border-radius:16px;
}

.button{
    position:absolute;
    width: 60%;
    bottom: 32%;
    left: 20%;
}